2026 Rolls-Royce Spectre Black Badge (22 inch Wheels): home charging cost in Illinois

A 2026 Rolls-Royce Spectre Black Badge (22 inch Wheels) draws 45.4 kWh per 100 miles per the EPA; at Illinois's 19.22¢/kWh residential rate that's $8.73 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. Charging at home is much cheaper than gas here: 45.5% less than gas per mile, here specifically.

Annual cost, at 15 thousands miles a year

Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2026 Rolls-Royce Spectre Black Badge (22 inch Wheels) charged at home in Illinois costs about $1,310/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,093 a year.

Filling up the 2026 Rolls-Royce Spectre Black Badge (22 inch Wheels), in dollars

A 2026 Rolls-Royce Spectre Black Badge (22 inch Wheels) needs roughly 120.8 kWh to reach its EPA-rated 266-mile range, which runs about $23.22 at 19.22¢/kWh in Illinois.

Where this ranks

This combination ranks 16,069 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rolls-Royce Spectre Black Badge (22 inch Wheels) alone ranks 361 of 400 models for efficiency; Illinois alone ranks 36 of 51 states for electricity price.

Getting set up to charge a 2026 Rolls-Royce Spectre Black Badge (22 inch Wheels) at home

The numbers above assume Level 2 home charging is already in place — the electrical work behind that is a real, separate cost that varies by panel, wiring, and local labor rates, not something this page's per-mile math includes.

Ask a licensed Illinois electrician to quote the install before this math becomes a real decision.

Where these figures come from

See the methodology guide for exactly which EIA and EPA figures feed 2026 Rolls-Royce Spectre Black Badge (22 inch Wheels)'s cost in Illinois. Curious how Illinois's 19.22¢/kWh compares? The guide to charging cost by state ranks every state side by side.